How print out the contents of a HashMap in ascending order based on its values?

Question

I have this HashMap that I need to print out in ascending order according to the values contained in it (not the keys

Answer 1

the for loop of for(Map.Entry entry: codes.entrySet()) didn't work for me. Used Iterator instead.

Iterator> i = codes.entrySet().iterator(); 
while(i.hasNext()){
    String key = i.next().getKey();
    System.out.println(key+", "+codes.get(key));
}